Natawadee Sirithorn และ Carl Middleton. (2018) Explaining barriers and opportunities for recycled pet for food packaging in Thailand through the lenses of organizational environment theory. Chulalongkorn University:ม.ป.ท.Natawadee Sirithorn และ Carl Middleton. 2018. Explaining barriers and opportunities for recycled pet for food packaging in Thailand through the lenses of organizational environment theory. ม.ป.ท.:Chulalongkorn University;Natawadee Sirithorn และ Carl Middleton. Explaining barriers and opportunities for recycled pet for food packaging in Thailand through the lenses of organizational environment theory. ม.ป.ท.:Chulalongkorn University, 2018. Print.